SNMP over IPX
obsoletes
- rfc-1298 — SNMP over IPX
Extracted elements (8)
This specification is intended only for environments where UDP transport is not available; the preferred mapping for SNMP is onto UDP. No managed agent in a heterogeneous transport environment should be required to support more than one mapping, though management stations are strongly encouraged to support all popular transports.
Although SNMP does not require implementations to accept messages exceeding 484 bytes, 546 bytes is the IPX maximum and is guaranteed to traverse IPX routers that do not provide fragmentation. Longer packets may be used if the actual maximum along the path is known.
Implementations are recommended to support a maximum SNMP message size of 546 bytes, which is the maximum size allowed under IPX and the maximum packet length guaranteed to traverse IPX routers without fragmentation.
SNMP protocol entities receive GetRequest-PDU, GetNextRequest-PDU, and SetRequest-PDU messages on IPX socket 36879 (hex 900F), and Trap-PDU messages on socket 36880 (hex 9010).
GetResponse-PDU messages are addressed to the IPX address and socket from which the corresponding request PDU originated.
SNMP packets sent over IPX must set the Packet Type field in the IPX header to 4 (Packet Exchange Packet).
When SNMP traps are sent over IPX, the agent-addr field in the Trap-PDU is set to IP-address '0.0.0.0'; the manager must determine the trap source from transport-layer information.
Security issues are not discussed in this memo.